Conferencia
Data Science in Fundamental Physics and the bridge to industry
Data Science is the art of analyzing data sets to find correlations, causal relations, patterns; build hypothesis, assign significances to them, assess the efficiency of an algorithm of finding a signal probability of false positives, assess the efficiencies of finding a signal. Define control samples, simulate and replicate the reality according to a model. Access, store, retrieve data, moderate or extremely large datasets (Big Data); create automatic tools that take decisions,….. Data analysis within high energy physics and astroparticle physics is Data Science. The event (to be held in Santiago de Compostela from June 3 to 7, 2024) aims to show to students, PhDs and young postdocs that coming to fundamental physics is an career opportunity with huge synergies with the job market and the needs of modern society. This event would be made of a school with courses on data science currently used in HEP (High Energy Physics) and astroparticle physics and a symposium where different companies present their current trends, needs and daily work related to Data Science. This event also intends to find interlocutors for establishing communication channels with the industry that allow to explore partnerships and joint projects, to compete for international grants, and also to show the capabilities of IGFAE and (Astro) Particle Physics in general in the field of Data Science. This event will facilitate bringing together the two sides and create the framework to enlarge mutual knowledge of daily work, allowing to create practical synergies from Data Science in fundamental physics into Data Science in industry. 
Seminar
Dissecting Orbifolds with integrability and localisation
Type IIB string theory on AdS_5 x S^5 is integrable, which allows us to compute the spectrum of the dual CFT to extreme accuracy, even for nonBPS states. The arguably simplest deformation of this model is an orbifold projection, which generically breaks supersymmetry but retains integrability. This allows us to study AdS/CFT in systems with reduced supersymmetry. If we break supersymmetry completely, as for example in type 0B theory, tachyons come to haunt us, and their matching across AdS/CFT is quite puzzling. If we retain N=2 supersymmetry, the gauge theory is well behaved and extensively studied. I will show how recent localisation results can be used to study string corrections to supergravity. 
Seminar
The Regge asymptotics of 2 > N scattering in QCD and gravity: from amplitudes to shockwave collisions
We discuss the structure of 2> N scattering in QCD and gravity in high energy Regge asymptotics and outline remarkable similarities between the two. This includes the double copy structure of effective vertices in the scattering and the reggeization of tchannel propagators. We discuss how classical lumps emerge in high energy QCD as fixed points of renormalization group equations and describe the resulting shockwave picture of hadronhadron collisions leading to the formation of a quarkgluon plasma. We argue that these ideas can be ported to describe the scattering of gravitational shockwaves, the resulting radiation spectrum, and possibly, to a deeper understanding of the formation of primordial black holes. Raju Venugopalan is the director of the ElectronIon Collider Theory Institute and Distinguished Scientist at the Physics Department, Brookhaven National Laboratory. 
Dissertation
PhD Dissertation: Fisión de alta enerxía e o limiar da quasifisión
Autor: Daniel Fernández Fernández. Directores: Manuel Caamaño Fresco, Diego Ramos Doval. 
Seminar
Neural networks and holography: gravitational duals from equations of state
Holography relates gravitational theories in five dimensions to fourdimensional quantum field theories in flat space. Under this map, the equation of state of the field theory is encoded in the black hole solutions of the gravitational theory. Solving the fivedimensional Einstein’s equations to determine the equation of state is an algorithmic, direct problem. Determining the gravitational theory that gives rise to a prescribed equation of state is a much more challenging, inverse problem. We present a novel approach to solve this problem based on physicsinformed neural networks. The resulting algorithm is not only datadriven but also informed by the physics of the Einstein’s equations. We successfully apply it to theories with crossovers, first and secondorder phase transitions. Yago Bea is a researcher in the Departament de Física Quántica i Astrofísica & Institut de Ciències del Cosmos, Universitat de Barcelona. 
Seminar
Oneloop integrable Smatrices from treelevel
Integrable quantum field theories in 1+1 dimensions play a central role in many areas of physics. They provide examples of exactly solvable models, whose Smatrices can be conjectured through the socalled Smatrix bootstrap program. While this axiomatic program allowed in the past decades for the determination of the Smatrices of several integrable theories, there is now growing evidence that many Smatrices are hardly obtained through the bootstrap, as is the case for many nonlinear sigma models defined on the worldsheet of superstrings. In this talk I will propose an alternative way to construct the Smatrices of 1+1 dimensional integrable theories which relies on standard perturbation theory; starting from the assumption that the theory is integrable at the tree level I will show how to write sums of oneloop diagrams in terms of tree amplitudes and I will derive in this way a universal formula for the oneloop twototwo Smatrices in terms of tree Smatrices. I will show how this method works for integrable bosonic Lagrangians with polynomial interactions. 
Seminar
1loop renormalisability of integrable sigmamodels
It has been conjectured that classically integrable 2d sigmamodels are stable under 1loop renormalisation. I will present a proof of this conjecture, which applies to a very large class of theories: those that can be engineered on surface defects in 4d ChernSimons theory. (In fact, we are not aware of any examples outside this class.) The first step is to show that integrable sigmamodels’ 1loop divergences take a ‘universal’ form in terms of the classical Lax connection. Writing this result in the language of 4d ChernSimons, one learns that the 4d coupling constant (the \\\'twist function\\\') can absorb all the 1loop divergences. This implies 1loop renormalisability and proves a particular flow of the twist function that was previously conjectured. 
Outreach
Visita do CPR Plurilingüe La Merced

Conferencia
Towards Relativity: Einstein and His Compass
Speaker: Sudipta Sarkar (Indian Institute of Technology, Gandhinagar). Abstract: The advent of special relativity resulted from intense scientific thinking spanning several decades. The history of relativity begins with the strive to understand motion, inertia, and light, which finally led to the Einsteinian revolution in 1905. In this seminar, I attempt to summarize the rich history of the theory of special relativity; the emphasis would be to discuss the contributions of several physicists and mathematicians and the uniqueness of the approach taken by Einstein. 
Outreach
Visita do Colexio San José de la Guía
